World War II-era servicemen and other commuters wait for their trains at Penn Station. Circa 1942.

The Broadway Local subway train stops at an underground station to take on passengers as two NYPD officers and a uniformed train conductor stand with commuters on the platform. Date unspecified.

The interior of the main concourse at Penn Station. 1911.

A couple share their farewell kiss before he ships off to war in Penn Station. Circa World War II.

Commuters wait for trains at Penn Station. Circa 1942.

Four “Miss Subways” and a lone male judge study scads of letters from subway riders who had been asked to nominate their favorite transit employe for the title of “Mr. Courtesy.” 1962.

City Hall subway station. Circa 1900-1904.

Crowds wait for their trains inside Grand Central Station. Circa 1904.

An aerial view of Penn Station and the New York skyline at night. Circa 1950s.

Commuters eat and drink at the counter of a dining car on a train making its way into New York. 1941.

Crowds go about their business inside Penn Station. Circa 1950.

Commuters play bridge on a train to New York. 1941.

Light shines down on the concourses of Penn Station. Circa 1905-1915.

Commuters eat on a train to New York. 1941.

Commuters crowd the terminal of Penn Station, preparing to leave town for the holidays. The original station was designed by the architects McKim, Mead & White in the Beaux-Arts style, and was demolished in 1963 to make room for a new Madison Square Garden. Circa 1910.

A couple sits together on the subway. Circa 1947.This photo was taken by revered film director Stanley Kubrick before he ventured into cinema.

Well-dressed pedestrians walk down the stairs into the subway. Circa 1940s.

Interior view of a subway car, featuring upholstered seats. Circa 1935.

The waiting room at Penn Station. Circa 1900-1920.